Vagif Gafar:
Folks, hello,
should I drain the first control-plane node during kubeadm cluster upgrade? Or only second and the other / worker nodes?
R Banerjee:
draining may be required for the upgrade completion, right? updating the kubectl for the Control Plane is as imp as the one on the worker nodes, IIUC
Vagif Gafar:
yes, it is required:
https://kubernetes.io/docs/tasks/administer-cluster/kubeadm/kubeadm-upgrade/#drain-the-node